Steps:

1. Create Pipeline job for any project on github.

   node {
      def mvnHome
      stage('Preparation') { 
         git 'https://github.com/user-github/project.git'           
         mvnHome = tool 'M3'
      }
      stage('Build') {
         if (isUnix()) {
            sh "'${mvnHome}/bin/mvn' -Dmaven.test.failure.ignore clean package"
         } else {
            bat(/"${mvnHome}\bin\mvn" -Dmaven.test.failure.ignore clean package/)
         }
      stage('Results') {
         junit '**/target/surefire-reports/TEST-*.xml'
         archive 'target/*.jar'
      }
   }
   

2. Open this project on github.
3. Edit any files via the web interface. Commit.
4. Run this job.
5. Check Recent Changes:
   Expected Result: Recent changes have been made the correct user from github.
   Actual Result: Recent changes have been made the "noreply" user.
   Correct git log:

   commit 497fb99ae5c481f72ea34fa2e190afa908660798
   Author: ksenia-nenasheva <ks.nenasheva@gmail.com>
   Date:   Tue Oct 4 14:46:24 2016 +0200
   
       Update Jenkinsfile
   
   commit bbf860b9a6c7a28208b717d42e6f8665b21063a8
   Author: ksenia-nenasheva <ks.nenasheva@gmail.com>
   Date:   Tue Oct 4 14:18:41 2016 +0200
   
       Update Jenkinsfile
   
   commit 7312064526032f050b04335b4676b27b48a698f0
   Author: ksenia-nenasheva <ks.nenasheva@gmail.com>
   Date:   Tue Oct 4 13:56:31 2016 +0200
   
       Update Jenkinsfile
   

Please see the attached screenshots.